PUREFLOW 2014 BMW 650i xDrive Gran Coupe Cabin Air Filter with HEPA and Antibacterial Technology, PC4329HX Model_Silverado 2500 HEPA-Level Filtration For Cleaner Air:

HEPA-Level Filtration For Cleaner Air: Captures up to 99

Advanced Odor Control — Unscented By Design: Uses high-grade activated charcoal and OdorShield technology to help manage odors

Breathe Cleaner Air: Traps dust

This layer is combined with baking soda to absorb bad odors

PUREFLOW 2014 BMW 650i xDrive Gran Coupe Cabin Air Filter with HEPA and Antibacterial Technology, PC4329HX Model_Silverado 2500 HEPA-Level Filtration For Cleaner Air:1st Stage: For drivers and passengers who suffer from severe allergies, PUREFLOW HEPA (High Efficiency Particulate Air) offers 99. 97% efficiency, capturing microscopic pollutants including pollen and other allergens (may result in a minor restriction to airflow). 2nd & 3rd Stage: Activated charcoal adsorbs harmful gases like carbon monoxide and sulfur dioxide. This layer is combined with baking soda to absorb bad odors. 4th Stage: Advanced